Author/Authors :
Yeol Kim، نويسنده , , Sang and Gook Kim، نويسنده , , Young and Su Ryu، نويسنده , , Sang and Hwan Kang، نويسنده , , Ju and Jehanne Simon-Gillo and Sullivan، نويسنده , , John P. and van Heck، نويسنده , , Hubert W. and Xu، نويسنده , , Guanghua، نويسنده ,
Abstract :
The MVD group has been testing two versions of silicon pad detectors. One design uses a single metal layer for readout trace routing. The second type uses two layers of metal, allowing for greatly simplified signal routing. However, because the readout traces for the pads pass over the other pads in the same column (separated by an oxide layer), the double-metal design introduces crosstalk into the system. A simple test stand using a 90Sr β− source with scintillator triggers was made to estimate the crosstalk. The crosstalk between pads in the same column of the pad detector was 1.6–3.1%. The values measured between pads in different columns were very close to zero. The measured crosstalk was below our maximum allowed value of 7.8%.
